Answers

2014-05-18T21:20:34+05:30
Concave lens is used for short sight and
convex lens is used for long sight .
1 5 1
2014-05-18T21:22:37+05:30
Convex lense for long sight and concave lense for short sight
1 5 1
sorry and thanks
ok and wlcm
you can edit it saubia
I've done it
nic u r crct saubia